<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>函数式组件</title>
  <style>

  </style>
</head>

<body>
<!-- 创建test -->
<div id="test"></div>
<!-- 引入核心库 -->
<script src="../js/react.development.js"></script>
<!-- 引入react操作DOM支持库 -->
<script src="../js/react-dom.development.js"></script>
<!-- 引入babel 用于将jsx转为js -->
<script src="../js/babel.min.js"></script>
<script type="text/babel">  // 此处引入一定要写babel
//  1.创建函数式组件
  function Demo () {
    return <h2>我是函数自定义的组件(适用于简单的自定义组件)</h2>
  }
//  2.渲染组件到页面、
ReactDOM.render(<Demo />, document.getElementById("test"))
</script>
</body>

</html>